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Numerical simulation of flow-induced noise in high pressure reducing valve

Wei, Lin; Zhu, Guorong; Qian, Jinyuan LU ; Fei, Yang and Jin, Zhijiang (2015) In PLoS ONE 10(6).
Abstract

The main objective of this paper is to study the characteristics of flow-induced noise in high pressure reducing valve (HPRV) and to provide some guidance for noise control. Based on computational fluid dynamics (CFD), numerical method was used to compute flow field. Ffowcs Williams and Hawkings Model was applied to obtain acoustic signals. The unsteady flow field shows that noise sources are located at the bottom of plug for valve without perforated plate, and noise sources are behind the plate for valve with perforated plate. Noise directivity analysis and spectrum characteristics indicate that the perforated plate could help to reduce noise effectively. Inlet pressure has great effects on sound pressure level (SPL). The higher inlet... (More)

The main objective of this paper is to study the characteristics of flow-induced noise in high pressure reducing valve (HPRV) and to provide some guidance for noise control. Based on computational fluid dynamics (CFD), numerical method was used to compute flow field. Ffowcs Williams and Hawkings Model was applied to obtain acoustic signals. The unsteady flow field shows that noise sources are located at the bottom of plug for valve without perforated plate, and noise sources are behind the plate for valve with perforated plate. Noise directivity analysis and spectrum characteristics indicate that the perforated plate could help to reduce noise effectively. Inlet pressure has great effects on sound pressure level (SPL). The higher inlet pressure will lead to larger SPL at high frequency. When the maximum Ma is close to 1, SPL at low frequency becomes very high.

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author
publishing date
type
Contribution to journal
publication status
published
subject
in
PLoS ONE
volume
10
issue
6
publisher
Public Library of Science
external identifiers
  • scopus:84936817484
ISSN
1932-6203
DOI
10.1371/journal.pone.0129050
language
English
LU publication?
no
id
caaeb6fe-bcf3-4b60-a34d-487c9eae5d75
date added to LUP
2016-11-11 17:10:44
date last changed
2017-07-23 05:20:15
@article{caaeb6fe-bcf3-4b60-a34d-487c9eae5d75,
  abstract     = {<p>The main objective of this paper is to study the characteristics of flow-induced noise in high pressure reducing valve (HPRV) and to provide some guidance for noise control. Based on computational fluid dynamics (CFD), numerical method was used to compute flow field. Ffowcs Williams and Hawkings Model was applied to obtain acoustic signals. The unsteady flow field shows that noise sources are located at the bottom of plug for valve without perforated plate, and noise sources are behind the plate for valve with perforated plate. Noise directivity analysis and spectrum characteristics indicate that the perforated plate could help to reduce noise effectively. Inlet pressure has great effects on sound pressure level (SPL). The higher inlet pressure will lead to larger SPL at high frequency. When the maximum Ma is close to 1, SPL at low frequency becomes very high.</p>},
  articleno    = {e0129050},
  author       = {Wei, Lin and Zhu, Guorong and Qian, Jinyuan and Fei, Yang and Jin, Zhijiang},
  issn         = {1932-6203},
  language     = {eng},
  month        = {06},
  number       = {6},
  publisher    = {Public Library of Science},
  series       = {PLoS ONE},
  title        = {Numerical simulation of flow-induced noise in high pressure reducing valve},
  url          = {http://dx.doi.org/10.1371/journal.pone.0129050},
  volume       = {10},
  year         = {2015},
}